Acoustic emission (AE) source localization using extended Kalman filter (EKF)

Ehsan Dehghan Niri; Salvatore Salamone; Puneet Singla

doi:10.1117/12.914848

28 March 2012 Acoustic emission (AE) source localization using extended Kalman filter (EKF)

Ehsan Dehghan Niri, Salvatore Salamone, Puneet Singla

Proceedings Volume 8348, Health Monitoring of Structural and Biological Systems 2012; 834804 (2012) https://doi.org/10.1117/12.914848
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

This paper presents a method for Acoustic Emission (AE) source localization in isotropic plate-like structures based on the Extended Kalman Filter (EKF). The accuracy of the traditional triangulation methods depends on the time of flight (TOF) measurements and on the group velocity assumption so uncertainties in both should be taken into account and filtered out. An algorithm based on the Extended Kalman Filter (EKF), capable of filtering out these uncertainties, has been developed for the estimation: 1) the AE source location and 2) the wave velocity. Experimental tests have been carried out on an aluminum plate to show accuracy and robustness of the proposed approach.

Citation Download Citation

Ehsan Dehghan Niri, Salvatore Salamone, and Puneet Singla "Acoustic emission (AE) source localization using extended Kalman filter (EKF)", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 834804 (28 March 2012); https://doi.org/10.1117/12.914848

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